ARCHITECTURAL WALL PANELS - nichiha.com · 6 BASIcS CONTINUOUS INSULATION Where exterior/continuous insulation is used, horizontal AWP may be installed directly over up to 1” of

ARCHITECTURAL WALL PANELS | AWP-1818, AWP-3030 | JANUARY 2019

Horizontal Installation Guide

2

AWP-1818, 3030HORIZONTAL INSTALLATION GUIDE

TABLE OF CONTENTSBASICS 3 Limitations, Technical Reviews, Special Apps. 4

Safety 4

Framing & Sheathing 5

Continuous Insulation 6

Weather Resistive Barriers 8

Storage & Handling 8

Fasteners 9

HARDWARE & ACCESSORIES 10

PLANNING & LAYOUT 12

INSTALLING THE STARTER TRACK 13

Panels Below Starter & Sloped Grade 14

Large Openings 15

GENERAL PANEL & ACCESSORY BASICS 16

Panel Selection 16

Sealing Cut Panel Edges 16

Cutting Ultimate Clips 17

Face Fastening 17

Sealant 19

Sealant Joints/Caulking 19

AWP-1818 INSTALLATION 20

AWP-3030 INSTALLATION 24

CORNERS & OPENINGS 27

Inside Corners 27

Window Sills 28

Window/Door Jambs 29

Window/Door Headers 30

Outside Corners 30

VERTICAL CONTROL/EXPANSION JOINTS 34

HORIZONTAL/COMPRESSION JOINTS 35

PENETRATIONS, RAILINGS, & SIGNAGE 36

LAST COURSE 36

GABLE & OVERHANG 37

AWP AS SOFFIT 38

CLEANING & MAINTENANCE 42

Cleaning Panels 42

Paint Touch-Up 42

Removal of Exterior Acrylic Latex Paint 42

Other Paint & Graffiti Removal 43

Repairing Minor Damage 43

Panel Replacement 44

GENERALThis guide is intended to enable successful

installation Nichiha’s 1818mm and 3030mm

Architectural Wall Panels (AWP-1818, AWP-

3030) in a horizontal orientation. Spanish

and French versions are available. Further

installation information and technical resources

such as animated instructional videos, Technical

Bulletins, three-part specifications, product

testing and certifications, architectural details

in AutoCAD, Revit, and PDF versions, and other

technical documents are available

on our website: nichiha.com/resources.

Install products in accordance with the latest

installation guidelines and all applicable

building codes and other laws, rules,

regulations, and ordinances. Review all

installation instructions and other applicable

product documents before installation. This

install guide’s effective date is January 2019.

PRODUCT INSPECTION

Inspect all products thoroughly prior to

installation. Do not install any product which

may have been damaged in shipment or

appears to have a damaged or irregular finish.

Should you have a question or problem with

your order, contact your local dealer or Nichiha

Customer Service, toll-free, at 1.866.424.4421.

Keep the products dry prior to installation. It is best to store the products indoors, otherwise keep them covered. Do not stack pallets more

than two high.

3BASIcS

15mm(~5

8")

18mm(~3

4")10mm(~3

8")

10mm(~3

8")

1818 mm

455 mm

AWP-1818 GENERIC PANEL DETAILSCALE: 1" = 1'-0"

Back Surface

Front Face

(~17-7/8")

(~71-9/16")

455 mm 455 mm(~17-7/8")

16 mm

SCALE: 3" = 1'-0"

(~ 58")

BASICS OF THE AWP SYSTEMThe are two sizes of Nichiha panels: AWP-1818 and AWP-3030. There are unique aspects to both sizes. When installing either size, be sure to follow the dedicated instructions specific to them in this guide, distinguished by a color code and page headers/footers. The bulk of this guide is non-coded and applicable to all AWP.

AWP-1818 metric dimensions (in millimeters) are 455 (h) x 1,818 (l) x 16, 18, or 21 (t). Imperial equivalents (in inches) are 17-7/8 (h) x 71-9/16 (l) x 5/8, 3/4 or 7/8 (t).

AWP-1818 edges are shiplapped on all sides and a factory sealant gasket is included on the top and right edges. When the panels fit together, all factory joints are sealed. This enables stacked or staggered panel layouts for AWP-1818. Joint Tab Attachments are required at vertical joints. AWP-1818 must be installed horizontally.

AWP-3030 metric dimensions (in millimeters) are 455 (h) x 3,030 (l) x 16 (t). Imperial equivalents (in inches) are 17-7/8 (h) x 119-5/16 (l) x 5/8 (t).

AWP-3030 edges are shiplapped only on the top and bottom, with the top edge including a sealant gasket. Vertical edges for AWP-3030 are flat, requiring sealant backers or metal trim and allowing only a stacked layout. The flat, vertical edges are never butted directly together, nor staggered. AWP-3030 may be installed horizontally or vertically. Refer also to the AWP-3030 Vertical Install Guide.

AWP ATTACHMENT HARDWARE Ultimate Clips and Starter Track engage the top and/or bottom panel edges, holding the panels off the substrate surface by 10mm (~3/8”) and creating a closed-joint, drained/back-ventilated rainscreen system with concealed fastening.

SYSTEM THICKNESS For the overall thickness of the AWP system, add the 10mm rainscreen channel to the thickness of the panel (16, 18, or 21mm) for a total system depth of 26, 28, or 31mm.

Panels of different thicknesses may not be jointed directly as they require particularly-sized Ultimate Clips. Panels of mismatched thicknesses must be separated by compression and/or control joints.

Dimensions are measured from the edges of the panel face, which includes the left (AWP-1818 only) and bottom shiplaps (all panels).

top shiplap(with sealant gasket)

AWP-3030WIDTH: 119-5/16”

flat vertical edges

AWP-181871-9/16” W x 17-7/8” H

top shiplap(with sealant gasket)

3/8” right shiplap (with sealant gasket)

4 BASIcS

LIMITATIONS, TECHNICAL REVIEWS & SPECIAL APPLICATIONS

Natural limitations on product usage are inherent to any cladding product’s design, physical characteristics, and attachment system. Nichiha AWP are intended as a low-to-mid-rise cladding product.

Any project of more than three stories or 45 feet, as well as those located in high wind coastal areas (Exposure Categories C and D with Basic Wind Speed in excess of 130 mph), or those with any wall assembly not described in Framing & Sheathing Requirements, require a technical review by Nichiha to evaluate feasibility via our Technical Design Review process.

By evaluating a project’s unique criteria and design, we can reference independently test-derived and calculated wind load performance data for our products to determine whether and how the panels can safely be installed on the project. Contact your local rep or Nichiha technical department for details or to initiate a Technical Design Review.

AWP are not to be used in any applications/uses not specified or described in this installation guide or other Nichiha technical documents. Any such use shall not be backed by the manufacturer’s product warranty.

Do not use AWP on open screen walls.

Insulated Concrete Forms (ICFs) require additional measures.

Installation of AWP products on modular structures that are factory-constructed and then transported to a final site are not approved; and further, excluded from the Limited Product Warranty, per Section 2.F.

AWP installed as soffit is not covered by the Nichiha Product Warranty or the Nichiha Finish Warranty. Refer to pages 38-41.

Please contact Nichiha Technical Services for assistance.

SAFETY

As with any natural stone, masonry, or concrete

based product, when cutting, drilling, sawing,

sanding, or abrading fiber cement cladding, proper

safety measures must be taken due to the potential

for airborne silica dust, an OSHA-identified hazardous

substance that can pose serious medical risks.

Always wear safety glasses and a NIOSH/OSHA

approved respirator with a rating of N, O, or P

100. Carefully follow the respirator manufacturer’s

instructions as well as applicable governmental safety

regulations concerning silica. Refer to Nichiha’s SDS

for more information.

Always cut fiber cement panels outside and with a

dust-collecting HEPA vacuum system. Do not cut

the products in an enclosed area.

Use a dust-reducing circular saw with diamond-tipped

or carbide-tipped fiber cement saw blades.

Always clean panels after cutting. Fiber cement

dust can potentially bind to the panel finish. HEPA

vacuuming is best, with care taken not to damage

panel finish.

5BASIcS

STRUCTURAL INSULATING PANELS (SIP)

SIPs should be installed in accordance with the

manufacturer’s instructions and local building codes.

Additional special Nichiha installation requirements

for SIPs are discussed in the Fasteners and Panel

Installation sections to follow. For installations taller

than one story, contact the Technical Department for

assistance.

PRE-ENGINEERED METAL BUILDINGS (PEMB)

Metal buildings must be new construction.

No retrofits/remodels.

Limit the metal siding/skin deflection to L/120.

50 ksi metal panels must have ribs spaced no more

than 12” O.C. with metal gauge determined by

allowable wind design pressures:

Projects with allowable design pressures in excess

of the table values may not utilize AWP directly over

PEMB metal panels.

Additional special installation requirements for PEMBs

are discussed in the Fasteners, Installing the Starter

Track, and Panel Installation sections to follow.

24 gauge

22 gauge

METAL PANEL GAUGE

-31.41 psf

-39.29 psf

ALLOWABLE PRESSURE

PHOTO CREDIT: NUCOR BUILDING SYSTEMS

FRAMING & SHEATHING REQUIREMENTSPrior to Nichiha installation, closely inspect the exterior wall substrate and correct any problems. Walls that are out of plumb, for example, can negatively impact the installation quality of AWP. Nichiha Spacer may be used in conjunction with panel attachment hardware if necessary to ensure an even substrate.

Nichiha AWP cladding may be installed on flat, vertical walls only. No curves nor tilted or sloped walls. Wood or steel framing, concrete/masonry with

furring, Structural Insulating Panels (SIP), and pre-

engineered metal buildings (PEMB) must meet the

following requirements:

Refer to our third party building code certification(s) and/or state/local approvals for allowable wind design pressures. http://www.nichiha.com/resources/product-certifications

WOOD STUDS

Size: minimum 2x4 studs Spacing: 16” o.c. max Sheathing: exterior grade minimum 7/16” plywood/OSB (APA rated), ½” or 5/8” gypsum

METAL STUDS

Gauge: minimum 18 Spacing: 16” o.c max Sheathing: exterior grade minimum 7/16” plywood/OSB (APA rated), ½” or 5/8” gypsum

CONCRETE/MASONRY

Furring is required for installation of AWP over concrete and masonry structures.

Wood Furring: pressure treated lumber 2x4, oriented vertically, spaced 16” o.c. max

Metal Furring: hat channel, c-stud, or z-furring, minimum 18 gauge, oriented vertically, spaced

16” o.c. max

6 BASIcS

CONTINUOUS INSULATION

Where exterior/continuous insulation is used, horizontal AWP may be installed directly over up to 1” of foam plastic insulation on wood or gypsum sheathing. For such applications, a minimum compressive strength of 25 psi insulation is highly recommended. Thicker insulations require a structural solution to provide attachment points for AWP such as a furring grid or third-party specialized system. Mineral wool c.i. of any thickness requires a furring.

Also refer to the Technical Bulletin: Continuous Insulation and AWP available at nichiha.com/resources/technical-bulletins.

Please contact the Nichiha technical department for

further assistance.

AWP OVER C.I. ATTACHMENT REQUIREMENTS

When adding a furring grid* to enable AWP

installation over c.i., the following general criteria

are applicable:

AWP-1818 and AWP-3030 Horizontal Applications

1. Shaped metal furrings (Z, hat channel, C, etc.)

• Minimum 18 gauge

• Aligned vertically

• Spaced 16” o.c. (max)

- or -

2. Pressure treated lumber (Do not use strips of wood sheathing as furring.)

• Minimum 2x (1.5”) thickness

• Aligned vertically

• Spaced 16” o.c. (max)

- or -

3. A combination of horizontal (spaced per

engineer’s design) with a second, outermost layer

of vertical furring (16” o.c.)

*Consult a structural engineer to design the furring system to manage

the AWP system dead load of minimum 4 psf and also meet the project

wind load design criteria. Furring must account for expected building

compression. Nichiha does not provide fastener design for anchoring the

furring to structure. Refer to IBC 2015 Table 2603.12.2 for more info.

Vertical furring @ 16" o.c. (max)

Ultimate Clip at horizontal joint

Vertical furring @ 16" o.c. (max)

Ultimate Horizontal Starter Track

Nichiha Panel

Metal 18 gauge (min.) hat channel, z or cfurring @16" o.c.

Ultimate Clip

Plan view: AWP System on vertical furring

Section views: AWP System on vertical furring

7BASIcS

ACCESSORY ATTACHMENTS

Nichiha Double and Single Flange Sealant Backers

and metal trims, such as H-Mold and Corner Key,

must be fastened to furring, blocking, or 18 gauge

flat stock. Sealant backers must be fastened every

12-14” vertically, so any use of flat stock must

accommodate this fastening schedule.

Outside corners may be wrapped with 18 gauge flat

stock fabricated to fit the corner. Attach the stock to

furring on both sides of the corner. Corner Clips are

used to secure Nichiha factory panel Corners and

may be fastened to the flat stock wrapping, as can

metal trim corners.

IBC 2015 TABLE 2603.12.2

The model building code for 2015 includes information in Chapter 26 about foam plastic insulation/sheathing and furring minimum fastening requirements. Table 2603.12.2 shows various configurations depending upon framing gauge and spacing, fastener size and spacing, thickness of insulation and cladding weight. As an example, according to the table, 3 inches is the maximum thickness of foam sheathing on which a furring can be added directly on top, spaced at 16” o.c. and fastened with #8 screws every 12”-16” (into 18 gauge wall framing), that can support a cladding weight of 3

psf.

ENERGY CODE FRIENDLY MARKET OPTIONS

A number of engineered third party systems exist that are designed to solve the conflicts between energy code compliance and the safe installation of exterior claddings over continuous insulation.

Nichiha has direct experience with these products:

1. Knight Wall CI® and HCI™ Systems

2. Bracket and rail systems:

a. Cascadia Clips®

b. Knight Wall MFI®

c. FERO Cladding Support

d. ISO Clip 3. SMARTci GreenGirts

18 ga flat stock wrapping corner

8 BASIcS

WEATHER RESISTIVE BARRIERS

A weather resistive barrier (WRB) is required when

installing Nichiha panels over stud walls and SIPs. For

CMU/concrete and PEMB assemblies, Nichiha defers

to local code requirements. Use an approved WRB

as defined by the 2015 IBC. Refer to local building

codes. Fluid applied WRBs are acceptable.

A permeable WRB is highly recommended when

installing Nichiha panels for residential applications.

A permeable WRB is required for all commercial

applications.

Sheathings and insulations with an integrated

code-compliant WRB such as ZIP System® and

DensElement™ are acceptable.

All openings must have appropriate flashing to

prevent moisture penetration.

Follow manufacturer’s guidelines and all local

building codes.

STORAGE AND HANDLING

AWP are a finished product and care must be taken

to protect them against damage prior to and during

installation. Panels must be stored flat and kept dry.

Refer to storage information included on product pallets.

Do not stack pallets more than two high.

Ensure panels are completely dry before installing.

Panels MUST be carried on edge. Do not carry or lift

panels flat. Improper handling may cause cracking or

panel damage.

Direct contact between the panels and the ground

must be avoided at all times. It is necessary to keep

panels clean during installation process.

Cut the panels with the face down.

Always clean panels with a HEPA-filtered vacuum after cutting. Dust can bind to the finish.

When sidewalks are poured after AWP installation, take steps to cover/protect panels near grade.

Always cover pallets with a tarp or store indoors!

Don’t unpackage and re-stack panels! Always carry panels on edge!

9BASIcS

FASTENERS ALL APPLIcATIONSFasteners must be corrosion resistant. Stainless steel

or corrosion resistant screws such as hot-dipped zinc

or ceramic coated are recommended. Comply with all

local building codes for fastener requirements.

Number 10, pan-head screws (HD .365”) were used

as clip fasteners for AWP wind load testing. The

minimum size for Ultimate Clip, Starter Track fasteners

is #8. Clip and track screws must have a pan, wafer, or

hex type full head.

Min. Number 7 screws with a bugle or flat head

(min. head diameter 0.255”) are appropriate for face

fastening locations. Fasteners must penetrate framing

or furring per the minimum requirements below. Refer

to the Face Fastening Best Practices section on page

17 for face fastening procedure.

WOOD STUDS

Fasteners must penetrate solid structure by a

minimum of 1”.

METAL STUDS

Screws must penetrate solid structure by a minimum

of 1/2”. Three threads are needed for effective grab.

CONCRETE/ MASONRY

Furring to Masonry: Fastener type, size, and spacing

to be determined under direction of an engineer and

in accordance with local building codes.

AWP to Furring: Screws must penetrate wood furring a

minimum of 1” or steel by ½”.

STRUCTURAL INSULATING PANELS (SIP)

One inch, full-thread, corrosion resistant wood screws

must be used.

Fasten starter track every 16” max to the sill plate.

Double fastening per each Nichiha Ultimate Clip

(minimum of 4 screws per clip) is required as there are

fewer or no studs to secure the system.

Face fasteners below windows and at the top of the

wall are secured at 16” o.c. max. to the horizontal

solid wood included at such locations.

PRE-ENGINEERED METAL BUILDINGS (PEMB)

The PEMB wind load/panel gauge table (see Framing

& Sheathing Requirements) is contingent upon use of

#10-16 x 1” pan head, S/D screws.

10 HARDWARE & AccESSORIES

INSTALLATION HARDWARE & AccESSORIES

ULTIMATE HORIZONTAL STARTER TRACK

Horizontal Starter Track serves as the foundational support for the AWP system while

also providing faster and greater ease of installation.

ULTIMATE CLIP II

Ultimate Clips sit on the panel shiplaps, securing AWP to the wall and distributing dead

loads to the structure. Together, Ultimate Clips and Starter Track hold the back surface

of the panels off the substrate to create a 10mm (3/8”) rainscreen space.

Joint Tab Attachments are included with Ultimate Clips and must be secured within a

clip at the bottom of each AWP-1818 vertical joint to support panel lateral stability.

Fasteners are included for use with the Joint Attachments only.

CORNER CLIP

Corner Clips sit on the shiplaps of Nichiha Corners, securing them to the wall and

supporting their weight in cooperation with Starter Track.

CORRUGATED SPACER

At termination points where Panel Clips cannot be used, Nichiha Corrugated Spacer is

required to maintain the rainscreen space and prevent panel deflection at face fastening

locations such as window sills and headers.

FS 1010 SPACER – 10mm

FS 1005 SPACER - 5mm

JEL 778 CLIP Compatible with all AWP (except SandStone, VintageBrick, and CinderBlock)

JEL 788 CLIP Compatible only with SandStone, VintageBrick, and CinderBlock

JE 777C Compatible with all AWP Corners (except SandStone, VintageBrick and CinderBlock)

JE 787C Compatible with SandStone, VintageBrick and CinderBlock Corners

Horizontal Panels: Starter Track FA 700

NICHIHA CORNERS

Nichiha Corners are manufactured mitered panel corners available in the same finishes

as horizontally oriented AWP. Corners have 3-1/2” returns (face dimension). Corners are

not available for Miraia panels.

11HARDWARE & AccESSORIES

SEALANT BACKERS

Nichiha Sealant Backers provide exact spacing for expansion and termination joints

and the recommended depth of sealant (75-80%).

They provide faster installation than a foam backer rod and require less sealant.

At sealant joints, use a sealant that complies with ASTM C920, Class 35 (min.).

Refer to the Sealant section on page 19 for more information.

METAL TRIM OPTIONS

Nichiha metal trim provides aesthetically pleasing design options for corners, openings,

and transitions, as well as vertical joints.

TRIM** APPLICATIONS

Corner Key Outside Corners

H-Mold Vertical Joints - AWP-3030

Open Outside Corner Outside Corners

J-Mold Terminations

Inside Corner Inside Corners

** These trims are only compatible with 16mm thick panels.

ESSENTIAL FLASHING SYSTEM APPLICATIONS

Starter* Base/Clearance Concealment

Compression Joint Horizontal/Compression Joints

Overhang* Fascia-to-Soffit Transitions

* Inside and outside corner segments are available.

Single Flange Sealant Backer: FHK 1015 – 10 mm

Double Flange Sealant Backer: FH 1015 – 10 mm

12 PLANNING & LAyOUT

9"

4"

A

B

PLANNING & PANEL LAYOUT

To ensure a successful installation, it is important

to first plan how the panels will be laid out, where

compression and control joints will be located,

and line of sight regarding inside corners decided

Reminder: AWP actual dimensions are metric: 455mm

(h) x 1,818mm or 3030mm (l). Imperial equivalents:

17-7/8” (h) x 71-9/16” or 119-5/16” (l).

LAYOUTS

AWP-1818 can be installed in a stacked bond or a

staggered bond application. Refer to the illustrations

on Page 22. AWP-3030 must only be installed with

a stacked bond layout. AWP-3030 may not be

staggered. See the layout illustration on page 26.

VERTICAL CONTROL/EXPANSION JOINTS (PAGE 34)

10mm (3/8”) sealant joints account for thermal

expansion in the lateral dimension. These are often,

where possible, aligned with window or door jambs,

downspouts, or other features in order to minimize their

appearance. Depending on sheathing type, additional

framing, furring, or blocking may be required.

HORIZONTAL/COMPRESSION JOINTS (PAGE 35)

½” (min.) horizontal, flashed break detail to allow for

building compression at floor lines.

INSIDE CORNER LINE OF SIGHT (PAGE 27)

Sealant joints at inside corners can be placed out of

view from the primary line of sight of a wall. Place

the sealant joint on the less-viewed corner wall.

Alternatively, Inside Corner metal trim may be used.

CUT PANELS

In general, it is best to avoid cutting AWP to short or narrow strips and segments of less than 9”. The hard minimum width or height is 4”. Adjust the layout or use alternate materials when needed to avoid cutting AWP smaller than 4”.

Specifically, when an individual panel is wider than a window or other opening and is used over the head or under the sill, do not cut it to less than 9” in height. (image A)

When an opening is wider than an individual panel and two or more are needed to cap over the header or cup the sill, do not cut the panel to less than 4” in height. (image B)

13INSTALLING STARTER TRAck

HORIZONTAL AWP: INSTALLING THE HORIZONTAL ULTIMATE

STARTER TRACK

MINIMUM CLEARANCES

The Horizontal Ultimate Starter Track must be level

and attached at a minimum of 6” above finished soil

grade or per local building codes (use a laser level

to verify). When installing over a hard surface such as

driveways or sidewalks, a 2” clearance is acceptable.

Keep AWP at least 1” above roofs.

The AWP bottom face edge will extend ¾” below the

Starter Track.

Essential Starter Flashing may be installed prior

to the Starter Track to conceal the clearance gap

above hard scape and decking. Beginning with

outside and inside corner segments, fasten Flashing

at each stud location or every 10” o.c. to sill plate.

Fasten Flashing inside and outside corner segments

to framing on both sides, keeping at least 1” from

vertical edges. Main segments will slide into/overlap

the corner segments.

Position Flashing and/or Starter Track to leave 1/4”

clearance between the panel edge and Flashing.

This is also true for horizontal transitions to other

claddings/finishes.

FASTENING

The Starter Track must be installed using corrosion

resistant fasteners. Locate and mark the studs.

WOOD & METAL STUDS OR FURRING

Starter Track must be secured at every

stud line. Max. 16” o.c.

CONCRETE/MASONRY

When installing over concrete construction, the wall

must be furred out with pressure treated lumber or

metal hat channel. Starter Track must be secured at

each furring location. Max. 16” o.c.

STRUCTURAL INSULATING PANELS (SIP)

Secure Starter Track every 16” o.c. max. to the sill

plate.

PRE-ENGINEERED METAL BUILDINGS (PEMB)

Fasten Starter Track at every metal panel rib at

12” o.c. max.

Essential Starter Flashing

14 INSTALLING STARTER TRAck

PANELS BELOW STARTER TRACK

When panel layouts necessitate a partial panel at the

bottom of the wall, it is best to add the cut panel

below the Starter Track course. This also true for

sloped grade conditions.

Begin with Starter Track at lowest possible continual

level line and install it as directed in this guide. To

clad below Starter Track:

Add FS1010 Spacer below the Starter Track and at

the termination point at the wall base.

Cut the bottom edge of the partial panel. Insert the

top shiplap under the Starter Track. This will form

the appearance of a regular horizontal joint with the

bottom shiplap of the panel on the Starter Track.

Face fasten the bottom edge of the panel, one inch

up from the cut edge. Also face fasten the top edge

of this panel as shown in the drawing.

SLOPED GRADE & MULTIPLE PANEL COURSES

Below the Starter, if installing more than one course

of panels, install the full-sized course up under

the Starter and fasten upside-down Panel Clips

underneath, with every framing/furring member

covered by a clip. Face fasten the top edge of

the fill-in panel through corrugated Spacer. Keep

fasteners 1” from panel edges.

Add the next course and fasten upside-down clips

unless that panel course is the final/terminal, cut/

scribed one. Face-fasten the bottom/cut course with

backing corrugated Spacer.

Maintain minimum clearances above grade: 2” above

hardscape, 6” above soil. Paint, prime, or otherwise

seal all cut, exposed panel edges. Clean panels after

cutting with a clean, dry cloth to remove dust.

If installing over a masonry/CMU foundation, furring

is required. This should be taken into consideration

when planning the depth of the exterior wall and

cladding above so that the entire wall will have a

uniform depth.

Starter Track

Face fasteners

through Spacer

Cut, fill-in panel below Starter Track

15INSTALLING STARTER TRAck

2-6" CLEARANCE ABOVE GRADE

STARTER TRACK LOCATION

SLOPED GRADE

PANELS BELOW STARTERFACE FASTENED OVER SPACER

STARTER TRACK ABOVE LARGE OPENINGS

Large openings (full panel width or wider) such as

storefront windows or garages should be taken into

account with respect to Starter Track placement.

Utilize Starter Track above these large openings to

best support the weight of the panels above and for

ease of installation.

Install Starter Track above the opening with the normal

procedure. Also refer to Window/Door Headers.

Establish a level line from the bottom of the header

Starter Track out to the side on both ends with a laser level.

Use this line to measure down the wall (each side of

the large opening) to attach the wall base Starter Track

so that the panels will meet at the proper height with

respect to the head of the large opening.

Use the Panels Below Starter Track procedure

for adding fill-in panels below the wall base

Starter Track(s).

Level line - measure down from here to placelower Starter Track

Starter Track 1"above garage doorcasing

Starter Track

Corrugated Spacer

Cut, fill-in panels below Starter Track with sloping grade

Make strategic use of Starter Track above and flanking

large openings to course and align horizontal joints of

AWP. Reminders: all AWP are 17-7/8” (455mm) tall and

the bottom shiplap edge extends 3/4” below Starter

Track.

16 GENERAL PANEL & AccESSORy BASIcS

GENERAL PANEL & AccESSORy BASIcSAll trim, Single and Double Flange Sealant Backer

should be installed before panels. Refer to Inside

Corners, Doors, & Windows and Vertical Expansion

Joints sections respectively.

PANEL SELECTION

Nichiha AWP are packaged with two panels in a pack,

which are placed on pallets consisting of two stacks.

Due to alternating patterns of texture and color

between individual panels as well as how the panels

are manufactured and packaged, it is best to install all

panels from each individual stack before taking and

installing panels from the second stack on the same

pallet. Do not alternate installing from one stack and

the second, which may result in undesirable patterns.

SEALING CUT PANEL EDGES

When cutting AWP, it is best to cut with the panel

face down, except when cutting brick finish panels

as it is easier to follow the simulated mortar lines on

their face.

Cut and exposed panel edges must be primed or

sealed with fiber cement sealer (e.g. DryLock®) or

latex paint such as Kilz Premium® or Kilz Max®. Do

not use Color Xpressions touch up paint for edge

sealing as there will not be sufficient supply for

larger projects. Be sure to clean panels with a clean,

dry soft cloth or HEPA vacuuming after cutting to

prevent dust from bonding to the finish.

17GENERAL PANEL & AccESSORy BASIcS

CUTTING ULTIMATE CLIPS

JEL778/788 Panel Clips are 26” long. Where

full length clips can be used, they are required.

However, there may be conditions where clips must

be cut to accommodate panels or corner pieces in

smaller areas or segments such as narrow columns,

pilasters, or insets, recessed openings, or small

areas between windows.

Notches on the upward panel engagement flanges

indicate where clips can be cut evenly into thirds.

These 1/3 segments can be further reduced evenly

into two or four pieces each with weep holes serving

as dividing points. The smallest segment must

include at least one downward panel engagement

flange. Always use the widest clip segment possible.

Cut with a non-ferrous saw blade on a band or chop saw.

FACE FASTENING BEST PRACTICES

To minimize the appearance of face fasteners,

utilize the following steps:

Apply low adhesive tape such as painters tape to

the panel at face fastening locations.

Pre-drill panels 1” from the cut edge to be face

fastened. Use a countersink drill bit with chamfer

matching the head diameter of the bugle-head type

screws to be used for face fastening.

Fill counter-sunk fastener holes with exterior

cementitious filler, such as MH Ready Patch® and later

dab touch-up paint with cotton swabs or an artist

brush.

Remove the painter’s tape only after applying the

patch and touch up paint.

18 GENERAL PANEL & AccESSORy BASIcS

19GENERAL PANEL & AccESSORy BASIcS

SEALANT

Sealants to be used with AWP must match the

following requirements:

• Comply with ASTM C920

• Have a Class of 35, 50, or 100/50 (minimum 35% joint movement)

• Be a polyurethane, polyurethane hybrid, or Adfast Adseal 4580

• Provide two-sided adhesion at joints

OSI® QUAD® may not be used for Nichiha expansion joints

• It is a class 25 product.

• QUAD® MAX is acceptable since it is a Class 50

Refer to the Technical Bulletin: Sealants available

at Nichiha.com/resources/technical-bulletins.

SEALANT JOINTS/CAULKING

Fasten Single Flange Sealant Backers at inside

corners (one wall at corner), along window and door

jambs, and transition points with other cladding.

Fasten to framing, blocking or plywood/OSB

sheathing at 12-14” o.c. with the 3/8” bump/sealant

portion butting the corner or jamb.

Sealant complying with ASTM C920, Class 35 (min.) is

required where Single and/or Double Flange Sealant

Backer is used.

Refer to the sealant manufacturer’s instructions or

requirements.

Place low-adhesive tape (masking or painter’s) over

the panel along the areas requiring sealant joints for

a clean caulk line.

Fill the gap between the panels with a color-

matched/coordinating sealant which complies with

the ASTM C920, Class 35 (min.) standard. Nichiha

Sealant Backers allow for the proper depth of sealant

(75-80%).

Before removing tape, press the surface of the

sealant with a caulk spatula or similar tool to ensure

an even surface. Remove masking tape before sealant

cures. If excess sealant adheres to panel, remove

completely using a putty knife or soft cloth.

20 AWP-1818 INSTALLATION

AWP-1818 PANEL INSTALLATIONAWP installation proceeds by working from

left to right.

WOOD, METAL, CONCRETE / MASONRY WITH FURRING

For AWP-1818, trim off the left side ship-lapped

edge so the panel will fit tightly against an already

installed Inside Corner metal trim, Sealant Backer,

or outside corner trim. If starting at an inside corner,

predetermine which wall will include the Single

Flange Sealant Backer for an inside corner detail.

Consider the location to minimize the visibility of

the sealant joint line. Clad the higher visibility wall

without the sealant joint first so that the adjoining

wall panels can terminate to it with the Single Flange

Sealant Backer detail. Or use Inside Corner metal trim.

Set the first panel into the Starter Track and secure

the top edge with a Panel Clip, placing the first

clip about one inch from the left edge of the panel.

Fasten the clip at each stud location the clip reaches.

Every clip will cover 2-3 studs and must be fastened

to each. (Figure 21-a,b)

Proceed along the panel to the right, placing

another clip 3-4 inches from the end of the

previously installed clip so that the second clip

is roughly centered over the panel middle but

DO NOT skip any studs. Fasten clips at each

stud location.

Place the second panel next to the first, making

sure the shiplap joint fits tightly together.

A rubber mallet or block of wood may be used to

seat the panels firmly in place and tighten to the left.

Do not hammer directly anywhere on the panels as

direct contact may cause cracks, gouges, or chipping.

(Figure 21c)

Place a clip on top of this vertical joint. Vertical joints

must be spanned with a clip covering the top edge of

where the panels meet. Fasten the clip to each stud

it reaches, again not skipping any studs. Each long

panel edge should be supported by about 2.5 clips.

(Figure 21d)

Verify the first course of panels is level. Large

commercial buildings require checking level around

the entire building.

Start the second row in the same fashion as the

first, but, in addition to the previous steps, add the

Vertical Joint Tab Attachment against the bottom

right hand corner of each panel. The Attachment

seats inside the panel clip, with tabs that fit on clip’s

rainscreen flange. Fasten the Attachment to the panel

clip with the provided fastener. (Figure 21e)

Fit panels tightly together on both horizontal and

vertical joints, ensuring the panel edges are properly

butted together.

Complete the second and remaining non-terminal

rows in the same way, with the Vertical Joint Tab

Attachments at the base of each vertical joint.

Terminal rows such as under Compression Joints or at

the Last Course are covered in subsequent sections

of this guide.

AWP-1818

21AWP-1818 INSTALLATION

FIG. 21A FIG. 21B

FIG. 21C FIG. 21D

FIG. 21E

AWP-1818

22 AWP-1818 INSTALLATION

26" CLIP PLACEMENT FOR STACKED PANEL LAYOUT

CENTERLINE OF FRAMING MEMBEROR CHANNEL (SHOWN AT 16" O.C.)

FACE FASTEN AT TOP

FA700 STARTER TRACK

JOINT TAB TO BEINSTALLED TIGHTLYAGAINST LOWERRIGHT HAND CORNEROF PANEL

JEL777/787PANEL CLIP

PANEL CLIPS

26" CLIP PLACEMENT FOR STAGGERED PANEL LAYOUT

CENTERLINE OF FRAMING MEMBEROR CHANNEL (SHOWN AT 16" O.C.)

FACE FASTEN AT TOP

FA 700 STARTER TRACK

JOINT TAB TO BEINSTALLED TIGHTLYAGAINST LOWERRIGHT HAND CORNEROF PANEL

JEL777/787PANEL CLIPS

STRUCTURAL INSULATING PANELS (SIP)

In general, the steps mirror those for stud wall

applications. However, double fastening per each

panel clip (minimum of 4 screws per clip) is required

as there are fewer or no studs to secure the system.

There must be about 2.5 clips per AWP-1818 edge,

with vertical joints spanned by Panel Clips and the

Joint Tab Attachment seated in and fastened to the

Panel Clip at the lower right corner of each panel.

PRE-ENGINEERED METAL BUILDINGS (PEMB)

Refer again to general requirements concerning

PEMB installations in the Framing and Sheathing

Requirements section.

With metal panel ribs spaced no more than 12” o.c.,

install AWP in the same manner as with stud wall

applications but with Panel Clips fastened to each rib

they reach. Screws (#10x1”) applied at no more than

12” o.c.

There must be about 2.5 clips per AWP-1818 edge,

with vertical joints spanned by Panel Clips and the

Joint Tab Attachment seated in and fastened to the

clip at the lower right corner of each panel.

STACKED AND STAGGERED PANEL LAYOUTS AWP-1818

AWP-1818

23AWP-1818 INSTALLATION

AWP-1818

24 AWP-3030 INSTALLATION

AWP-3030 HORIZONTAL INSTALLATIONAWP installation proceeds by working from left to

right. AWP-3030 may only be installed in a stacked bond. Refer to layout illustration on page 26.

WOOD, METAL, CONCRETE / MASONRY WITH FURRING

For AWP-3030, the left and right panel edges are

flat and do not require initial cutting.

The panel will fit against an already installed Inside

Corner metal trim, Sealant Backer, or outside corner

trim. If starting at an inside corner, predetermine

which wall will include the Single Flange Sealant

Backer for an inside corner detail. Consider the

location to minimize the visibility of the sealant joint

line. Clad the higher visibility wall without the sealant

joint first so that the adjoining wall panels can

terminate to it with the Single Flange Sealant Backer

detail. Or utilize Inside Corner metal trim.

Set first panel into the Starter Track and secure the

top edge with an Ultimate Clip, placing the first

clip about one inch from the left edge of the panel.

Fasten clip at each stud location the clip reaches.

Every clip will cover 2-3 studs and must be fastened

to each. (Figure 25a)

Proceed along the panel to the right, placing another

clip 3-4 inches from the end of the previously

installed clip. DO NOT skip any studs. Fasten clips

at each stud location. Each AWP-3030 long edge

must be covered by four clips. (Figure 25b)

Since AWP-3030 do not have shiplaps on their short

edges, a control joint or H-Mold trim detail is needed

at each vertical joint. Do not butt vertical edges

directly. The vertical joint is continuous and not split up or staggered.

Fasten the Double Flange Sealant Backer at vertical

joints between panels. Fasten Sealant Backer on right

side flange every 12-14” to framing, blocking, or

plywood/OSB sheathing.

Install the next panel right up to the Double Flange

Sealant Backer and secure with clips at each stud

location. The sealant joint is 10mm (3/8”) wide.

(Figure 25c,d)

Alternatively, H-Mold metal trim can be used at

vertical joints for horizontal AWP-3030. This trim,

as well as Nichiha Sealant Backer must be fastened

to plywood/OSB sheathing, framing, furring, or

blocking. Fasten metal trim every 12-16” in a

staggered fashion on alternating flanges.

For H-Mold, leave a no more than a 1/8” gap

between the edge of the panel and the center

flange of the trim. (Figure 25e)

Verify the first course of panels is level. Large

commercial buildings require checking level around

the entire building.

Complete the second and remaining non-terminal

rows in the same way. Fit panels tightly together

on horizontal joints, ensuring the panel edges are

properly butted together. A rubber mallet or block of

wood may be used to seat the panels firmly in place

and tighten downward.

The Joint Tab Attachments are not used with

AWP-3030. Terminal rows such as under Horizontal/

Compression Joints or at the Last Course are

discussed in subsequent sections of this guide.

AWP-3030

25AWP-3030 INSTALLATION

FIG. 25A FIG. 25B

FIG. 25C

FIG. 25D

FIG. 25E

H-Mold as the AWP-3030 vertical joint detail

AWP-3030

26 AWP-3030 INSTALLATION

4 Clips per panel edge

Starter Track

face fasteners 1" below top edgeinto framing

AWP-3030 HORIZONTAL CLIP AND PANEL LAYOUT- ELEVATION VIEW - STACKED BOND ONLY

CONTINUOUS VERTICAL JOINT(H-MOLD TRIM OR DOUBLE FLANGE SEALANT BACKER)

STRUCTURAL INSULATING PANELS (SIP)

In general, the steps mirror those for stud wall

applications. However, double fastening per each

Panel Clip (minimum of four screws, evenly spaced

per clip) is required as there are fewer or no studs

to secure the system. There must be four clips per

AWP-3030 edge.

STACKED PANEL LAYOUT ONLY - AWP-3030

AWP-3030 must be installed with continuous vertical joints. No panel staggering is permitted. (Figure 26)

PRE-ENGINEERED METAL BUILDINGS (PEMB)

Refer again to general requirements concerning

PEMB installations in the Framing and Sheathing Requirements section.

With metal panel ribs spaced no more than 12” o.c.,

install AWP in the same manner as with stud wall

applications but with Panel Clips fastened to each

rib they reach. Screws (#10 x 1”) applied at no more

than 12” o.c.

There must be four clips per AWP-3030 long edge.

AWP-3030

FIG. 26

27cORNERS & OPENINGS

cORNERS & OPENINGS ALL APPLICATIONS

Appropriate flashing and moisture management

best practices must be used to prevent moisture

penetration at all inside corners, doors, and

windows. Refer to window/door manufacturer

requirements and local building codes. Cut and

exposed panel edges must be primed or sealed

with fiber cement sealer or paint.

INSIDE CORNERS

SINGLE FLANGE SEALANT BACKER

Decide the primary line of sight in order to minimize

visibility of the sealant joint.

Install the panel (ship-lapped edges at the joint will

need to be cut off) on the front wall (more visible)

first. Ensure these panels are butted up in moderate

contact to the inside corner wall.

Next, fasten the Single Flange Sealant Backer every

12-14” o.c., onto the side wall, right up against the

front wall panel faces.

Install the side wall panel directly against the sealant

backer and secure with Panel Clips. Fill space with sealant.

INSIDE CORNER METAL TRIM

Install Nichiha Inside Corner metal trim directly against

the inside corner sheathing. Fasten metal trim to

corner framing/furring every 12-16” in a staggered

fashion on alternating flanges.

If installing AWP-1818, remove the shiplapped edges,

treating the cuts, and install panels normally, butting

to the Inside Corner trim in moderate contact.

TRIM BOARDS

Install trim boards at inside corner first and butt the flat

panel edges to Single Flange Sealant Backer. Add ASTM

C920, Class 35 (min.) compliant sealant to the gap.

3/8" SEALANT JOINT OVER SINGLEFLANGE SEALANT BACKER

NICHIHA PANEL

NICHIHA CLIP

Inside Corner Trim

28 cORNERS & OPENINGS

WINDOW SILLS

FACE FASTENING

For recessed windows, add a flashing where the

panels will terminate so that the top edges are

covered or capped at the sill. As needed to match the

window width, remove panel top ship-lapped edge,

cutting the panel to the required height to fit below

the window sill, leaving a ¼” gap between the top of

the cut panel edge and the window sill or trim board.

Cut panel edges must be sealed with 100% acrylic latex

primer or paint, such as Kilz Premium or Kilz Max. Clean any dust off the panel with a clean, soft, dry cloth.

Add FS1010 Corrugated Spacer (10mm) at the sill,

set the panel on the clips of the panel(s) below, and

then face fasten the top, cut edge of the panel at the

sill, every 16” o.c. max. Keep screws 1” below panel

edge. This will avoid cracking or breaking the panel.

Pre-drill the panel before fastening.

If the top edge of the panel is fully sheltered under

the sill, it is not necessary to seal the 1/4” gap. For

better system performance, Nichiha recommends the

vented approach.

J-Mold type trim (installed before AWP) may be used

at window sills if AWP can be slid into position from

the side(s).

Face fasteners

through Spacer

29cORNERS & OPENINGS

WINDOW / DOOR JAMBS

A minimum gap of 1/4” is required when butting

panels into windows, doors, and trim boards. Refer

to window/door manufacturer guidelines for spacing

trims around openings.

SINGLE FLANGE SEALANT BACKER

Install the Single Flange Sealant Backer first, butting

to the door/window jamb or trim pieces prior to

installing the panels.

The Single Flange Sealant Backer must be fastened

a minimum of 12” to 14” o.c. to studs, blocking, or

structural sheathing.

Cut panels to the appropriate width, at least

removing ship-lapped edges. Remember to clean freshly cut panels with a soft, dry cloth.

Install panels and fill gap with ASTM C920,

Class 35 (min.) compliant sealant.

J-MOLD

Pre-install J-Mold trim per window/door manufacturer

instructions regarding trim/accessory clearances.

Panels must fit completely within trim, with no

exposed panel edges.

Lastly, add closed-cell foam backer rod and sealant to

any gap between the J-mold and jamb, if applicable.

NICHIHA CORNERS AT RECESSED JAMBS

Nichiha Corners can be used to wrap recessed

window jambs. Corners have returns of 3-1/2” (face

dimension). Cut the pieces as needed for shallower

returns but it must be of sufficient depth for use of

Corner Clips or a clip segment.

Wrap the base of the jamb with cut pieces of Starter

Track (or FS1010 Spacer if face fastening). Install

Corner pieces at jamb prior to main panels using

Corner Clips or cut Panel Clips (refer to Cutting Panel

Clips section). Cut clips must retain at least one

downward panel engagement flange.

Install Single Flange Sealant Backer with the sealant

bump against the Corner piece, fastening at 12” -

14” o.c. along the fastening flange.

Where Corner pieces meet the termination point at

the window, leave a minimum ¼” gap and add ½”

closed-cell backer rod and sealant.

NICHIHA FACTORYCORNER OVERCUT PANEL CLIPS

SINGLE FLANGESEALANT BACKER

3-1/2"

Single Flange Sealant Backer

30 cORNERS & OPENINGS

"Z" FLASHING BY OTHERS

NICHIHA 10MM SPACER

FACE FASTENER

1/4" CLEARANCE FROM EDGEOF PANEL TO FLASHING

Starter Track over Z-flashing

WINDOW/DOOR HEADERS

STARTER TRACK

When starting a course of whole panels above a

window or door, add flashing and Horizontal Starter

Track at the header, installed with fasteners at each

framing member or into header framing, every 16”.

Add flashing tape to seal flashing to the WRB. Refer

to Starter Track Above Large Openings on page 15.

FACE FASTENING

When adding a cut panel above the opening, install

flashing and corrugated Spacer first and then face

fasten panels every 16” to the header framing or at

each vertical framing member. Add flashing tape to

seal flashing to the WRB. Keep fasteners a min. 1”

from the panel bottom edge(s).

OUTSIDE CORNERS

There are several Nichiha recommended outside

corner installation options:

• Nichiha Corners

• Fiber Cement and PVC Trim Boards

• Metal (Open Outside, Corner Key) and Vinyl Trim

Appropriate flashing must be used as required to

prevent moisture penetration on outside corners.

NICHIHA CORNERS

Install Nichiha Corners prior to panels. Corners may only be used in vertical applications. They may not wrap window heads and sills.

Set a Corner on the Starter Track and secure with a

Corner Clip. Fasten with screws into framing/structure

on both sides of the Corner Clip.

Place the next Corner on top of the first, fitting the

ship-lapped edges together over the clips. Secure

the top edge in the same manner with a Corner Clip.

(Figure A, B)

Continue up the outside corner, stacking and

securing the Corner pieces.

The top Corner will be cut to the appropriate height

and face fastened over 10mm Spacer.

Add Double Flange Sealant Backer at the Corners on

both sides, all the way down from the top of the wall

section to the Starter Track. Secure Sealant Backer

to structure every 12-14” on the exposed fastening

flanges. (Figure C)

After all the panels have been installed, apply ASTM

C920, Class 35 (min.) compliant sealant to the

Sealant Backers.

31cORNERS & OPENINGS

C

A

Double Flange Sealant Backer

B

32 cORNERS & OPENINGS

Corner Key Trim outside corner detail with miter cut panel edges

FIBER CEMENT & PVC TRIM BOARDS

Nichiha manufactures a full line of fiber cement

trim boards - NichiTrim™, which are available

in the Southeast U.S. Refer to Nichiha.com for

more information.

When panels are to be butted to fiber cement,

wood or other trim pieces, use Nichiha Single

Flange Sealant Backer between them.

Apply sealant compliant with ASTM C920,

Class 35 (min.).

METAL & VINYL TRIM

Install trim channels, such as Nichiha Corner Key or

Open Outside Corner, manufactured by Tamlyn, prior

to panels and fasten with corrosion resistant fasteners

through trim flanges every 12-16” into studs or corner

blocking. Stagger fasteners on alternating sides.

Cut off terminal panel ship-lapped edges to fit panel

into channel the trim so that edges are not exposed.

Butt the flat panel edges in moderate contact to the

center flange of the trim. With Corner Key trim, this

will necessitate miter cutting the panel edges.

Refer to Vertical Control/Expansion Joints.

Nichiha metal trim pieces are each 10 feet in length.

To cut metal trim, a non-ferrous carbide miter saw

blade is appropriate. When butting/stacking metal

trim pieces, add a bead of polyurethane sealant at

the seam/joint.

Metal trim can be pre-finished when purchased to

match custom Nichiha Color Xpressions panels and

some standard panel colors. Otherwise, for field

painting metal trim, it is best to purchase Primed

trim, which readily accepts a variety of exterior

paints. See Tamlyn’s XtremeTrim Painting Guide.

33cORNERS & OPENINGS

NON-90-DEGREE CORNERS

Corners other than 90 degrees can be achieved

with custom metal trim, butting panels to trim board

with a minimum ¼” sealant gap, or with the use

of Double Flange Sealant Backer (refer to Vertical

Control/Expansion Joints) to set cut panel edges at

the desired corner angle. Miter cut panel edges as

needed to create uniform sealant joints.

The Double Flange Sealant Backer detail can be

utilized to accommodate use of AWP on segmented,

radius-like walls. Do not attempt to curve AWP. Contact

the Nichiha Technical Department for assistance.

Non-90 corner utilizing modified Double Flange Sealant Backer and miter-cut panel edges.

34 vERTIcAL cONTROL / ExPANSION jOINTS

Add framing/blocking to fasten Sealant Backers as necessary

vERTIcAL cONTROL/ ExPANSION jOINTS

AWP-1818

When using metal trim outside corners on walls wider than 30 feet, Vertical Control/Expansion Joints (Double Flange Sealant Backers) are required within 2-12 feet of both sides of outside corners and then approximately every 30 feet thereafter. Where cut panel edges terminate to trim channels, ensure the edges butt in moderate contact with them.

Projects using Nichiha Corners (see Figures on page 31) satisfy the 2’-12’ Rule but still require expansion joints roughly every 30 feet beyond the Corner joints.

For example, a 60-foot wall with two outside corners would require three vertical control joints: one near each outside corner and one towards the center.

Install Double Flange Sealant Backer to butt up against the panels at pre-determined locations and secure the joint to substrate on one side (the right side flange) at 12” - 14” o.c. Sealant Backers must be fastened to plywood/OSB sheathing, framing/furring members (added if necessary to pre-planned joint locations), or blocking. AWP-1818 17-7/8” edges must be cut, fully removing the shiplaps. H-Mold may not be used as a substitute for required AWP-1818 expansion joints.

AWP-3030

Double Flange Sealant Backers or H-Mold trim (see

pages 24, 25) are required between each AWP-

3030. The 455mm (17-7/8”) edges of the panels are flat (without shiplaps) and may not be butted together. These vertical joints may not be split up or staggered. A stacked panel layout is required. Double Flange Sealant Backer joints are 10mm (3/8”) wide.

SEALANT APPLICATION (1818 & 3030)

Apply low-adhesive tape along the panel edges at Double Flange joints to protect panel finishes from sealant and for a smoother look when the sealant is applied and tape removed.

Apply ASTM C920, Class 35 (min.) compliant sealant into the expansion joint, starting at the bottom and pushing sealant into the gap.

Follow the contour of the panel edges so that the sealant depth always matches the face edge/depth of the panels.

35HORIZONTAL / cOMPRESSION jOINTS

HORIZONTAL/cOMPRESSION jOINTSProject designers must account for building

compression when planning the cladding layout

and incorporate horizontal/compression joints as

appropriate. Nichiha is not liable for panel damage

due to building compression. In general, Nichiha recommends such joints at each floor level.

With metal framing projects of more than three stories

or 45 feet, add a compression joint approximately

every 25 feet, located at the floor line(s) nearest this

distance.

For wood framing projects of three stories or more,

a compression joint is required at each floor.

Locate compression joints at floor lines.

Please contact the Nichiha Technical Department

for assistance.

INSTALLING A HORIZONTAL COMPRESSION JOINT

Install Essential Compression Joint Flashing or a

heavy gauge z-shaped metal flashing or drip cap over

the top edge of the course of panels terminating

under the horizontal compression joint location.

Fasten Flashing at each stud location. A best practice

is to add flashing tape to cover the top edge of the

flashing and its fasteners.

The top ship-lapped edge of the bottom panel is cut

and secured by face fastening (1” below panel cut

edge) to framing every 16”o.c. with 10mm Spacer

behind.

Install Starter Track above the flashing such that the

next course of panels sit at least 1/2 inch above the

course below. Remember the bottom ship-lapped

edge of panels extend 3/4” below the Starter Track,

so the Starter will need to be installed at least 1-1/4”

above the edge of the panel course below the joint.

Check for level.

Continue to install panels according to these guidelines

with compression joints at the appropriate elevation(s).

36 PENETRATIONS, RAILINGS & SIGNAGE

FACE FASTENER

NICHIHA 10MM SPACER

METAL COPING

PENETRATIONS, RAILINGS, & SIGNAGE

Openings for small penetrations for pipes or conduits

may be cut through a panel and the hole sealed

with ASTM C920 compliant sealant. For larger

penetrations greater than 1.5”, it is best to block or

frame out the opening. Treat the penetration like a

small window.

Along the jambs of the opening install Single

Flange Sealant Backer. Cut panel edges as needed

to butt to Single Flange Sealant Backer and add

recommended sealant.

Underneath the opening block out, install FS1010

Spacer as needed for face fastening the top panel

edge at framing locations. Terminate the panel with

¼” gap. Sealant here is optional, depending on the

depth of the blocking.

Above the penetration, add flashing and install

FS1010 Spacer as needed for face fastening the

panel edge at framing locations. Ensure minimum

¼” gap between the bottom of the panel edge and

penetration blocking. Keep any face fasteners 1”

away from panel edges.

If installing railings or signage over AWP, ensure fasteners are secured through Spacers to the framing or other structural support. Do not fasten any attachment solely to AWP.

LAST COURSE All Applications

Fasten 10mm Spacer (FS 1010) to the wall where the last panel course will terminate. This is needed to maintain the rainscreen without use of the clips. Cut the panels (horizontally) to properly fit at the

termination line. Apply low adhesive/painter’s tape

to panels at face fastening locations. Pre-drill with

countersink 1” down from the top (cut) edge. Face

fasten at the studs and through the green Spacer (FS

1010) all along the top using bugle head type screws.

Fill counter-sunk fastener holes with exterior

cementitious filler, such as MH Ready Patch® and

later dab touch-up paint with cotton swabs. Remove

the painter’s tape.

Cover the top panel row edge with a roof cap/

coping, where applicable.

37GABLE & OvERHANG

FACE FASTENERS 1"FROM PANEL EDGE

SPACER

GABLES & OVERHANGS

Allow a minimum of 1” clearance (as per local

building codes) for AWP above a roof line.

At top, cut the panel to follow the slope of the gable.

When installing soffit, AWP should be installed first,

with the soffit installed over/butting to the panels.

Panels installed along gable edges must be face

fastened. When adding face screws, apply fasteners

at least 1” from any panel edge. This will avoid

cracking or breaking of the panel. Fasten every 16”

max.

All face-fastened panels must be shimmed out with

FS 1010 Spacer.

Seal all cut panel edges with 100% acrylic primer or

paint. Do not leave any panel edges exposed. Clean

any cut panels to remove dust.

Essential Overhang Flashing may be used at the base

of overhangs/bump-outs or porte-cocheres.

Prior to panel installation, fasten Overhang Flashing at

each stud location, beginning with corner segments.

Main segments will slide under/overlap corner

segments.

Use Joint Clip segments to join main segments

together. After the first piece is secured, add a

Joint Clip, fastening through both it and the first

main segment. The next main piece will slide behind

the Joint Clip.

Position Overhang Flashing so that its bottom/

return flange butts to or overlaps soffit. The

bottom return portion must extend beyond

the face of the fascia substrate.

ESSENTIAL OVERHANG FLASHING & JOINT CLIP

OUTSIDE CORNER INSIDE CORNER

VENTEDNICHISOFFIT

ESSENTIALOVERHANG FLASHING

38 AWP AS SOFFIT

AWP AS SOFFIT

Nichiha Architectural Wall Panels may be used in a soffit application when installed in strict accordance with the following provisions and requirements. AWP installed as soffit is not covered by the Nichiha Product Warranty or the Nichiha Finish Warranty. Nichiha is not responsible for any actions or defects incurred as a result of installations using AWP as soffit. Those opting to use this installation process incur all responsibility for their actions and any defects that result.

General requirements:

If applicable, remove existing soffit materials and sheathing to accommodate blocking and (required) face fastening schedules outlined in these instructions. Do not install AWP over existing soffit.At this time, wood framing and/or blocking with 2x lumber is required.

Framing spacing must be no greater than 16” o.c. Added blocking is required to enable the perimeter and field face fastening of the panels.

The face fastening schedule provided is required. Nichiha AWP hardware (clips and tracks) may NOT be used for soffit panel installations. Green Spacers are also not applicable.

Soffit panels are oriented with the long dimension (1818 mm (71-9/16”) or 3030 mm (119-5/16”)) parallel to the wall and the short panel dimension (455mm (17-7/8”)) perpendicular to the wall. Maximum soffit depth is 35” (two whole panels minus one shiplapped panel edge each).

All joints between panels must be factory ship-lapped joints or H-Mold trim.

Treat all cut panel edges by coating them with exterior acrylic latex paint.

The soffit framing must be level, at a 90-degree angle with respect to the vertical walls. Sloped applications are not within the scope of these instructions.

required Fasteners & FasteninG: Minimum 2” long, stainless steel or corrosion-resistant exterior, #8 or larger, full-headed and fully-threaded screws are required (lath head, bugle head). Color-matched fasteners are recommended.

Space the face fasteners at a maximum of 8” o.c. around the perimeter and along intermediate framing members (field). All edges must besupported by 2x lumber framing and/or blocking.

Keep fasteners 1” away from cut edges (full thickness of the panels) and 2” from shiplapped edges.

Pre-drill the panels at face fastener locations with a #6 countersink bit.

Procedures:

Single Panel Soffit Depth

Full-width AWP-1818 and AWP-3030 will require added blocking to accomodate all edge fastening.

AWP-1818 short edges & shiplap joints (17-7/8” wide edges) will break every 71-9/16”, which will not typically coincide with standard 16” or 12” o.c. framing. Add additional framing/blocking to enable face fastening along both sides of the joints, keeping screws 2” back from the joints. Space the added studs/blocking at 4” o.c. (one on each side of the panel joint location, 2” away from it). Refer to Detail One.

Similarly, AWP-3030 short edges will break every 119-5/16” which will also necessitate added framing to support the fastening of these edges. Because these edges are not shiplapped, fasteners shall be min. 1” away from the square-cut short edges (17-7/8”). H-Mold trim is required. Do not butt panel flat edges directly together.

For the AWP edges adjacent to the wall, cut off the shiplaps from the long dimension of the panels. Cut off the bottom/female edge of the panel, removing one inch of material (the entire profiled edge) to create a square-cut edge at the wall. Remove the top/male shiplapped edge, which will align with the fascia/overhang edge, away from the wall. Treat cut edges by coating with acrylic latex paint. See Detail Two.

Pre-drill and face fasten panels every 8” o.c. around the perimeter and in the field (along intermediate studs).

With AWP-3030, install H-Mold trim at the joint locations, fastening 16” o.c. to the framing (or added blocking as necessary) running parallel to the wall.

39AWP AS SOFFIT

Added 2x framing/blocking supports, 4” o.c. for fastening

panel short edges

8” o.c. (max)face fasteners

(keep 1” from cut edges)

Shiplap or H-Mold Joint(fasten 2” away from shiplap joints)

Face Fasteners every 8” (max.) perimeter and field

Essential Overhang Flashing

Face fasten the panels with min. #8 full-threaded screws (bugle or lath head), around the perimeter every 8” o.c. (max.) and along the intermediate framing and blocking/added framing.

Fasteners along the panel midpoint will be no more than 8” from the long edges.

Detail One

Detail Two

40 AWP AS SOFFIT

Double Panel Soffit Depth

For soffit depths up to 35” that require a second course of panels, further blocking is needed to accomodate support for the long shiplap joint at the center of the soffit. Position the added framing and blocking to enable face fastening along the panel edges, keeping the screws 2” away from the joints. Space the added studs/blocking at 4” o.c. (one on each side of the panel joint location, 2” away from it). Treat any cut panel edges by coat-ing them with exterior acrylic latex paint. Refer to Detail Three.

Pre-drill and then face fasten the panels with min. #8 full-threaded screws around the perimeter every 8” o.c. (max.), and along the intermediate framing and blocking/added framing. Fasteners along the panel midpoint will be no more than 8” from the long edges. See Detail Four.

41AWP AS SOFFIT

Added 2x framing/blocking supports

for panel edges

Shiplap or H-Mold Joint(fasten 2” away from shiplap joints)

8” o.c. (max)face fasteners

(keep 1” from cut edges)

Face Fasteners every 8” (max.) perimeter and field

Added Blocking to support face

fastening 2” away from shiplap joint

2”

4”

Detail Three

Detail Four

4”

42 cLEANING & MAINTENANcE

cLEANING & MAINTENANcE

CLEANING PANELS

After completion of the installation or for periodic

maintenance, it may be necessary to clean panels.

When cleaning panels, use no more than 400 psi of

water pressure at 10” to 12” away. Do not pressure wash custom color panels.

To clean heavily soiled areas, a mild household

detergent and/or soft bristle brush may be required.

Do not allow any detergent/cleaner to dry on panels.

Rinse immediately after cleaning.

PAINT TOUCH-UP

Touch up paint must be exterior grade 100% acrylic

latex and can be color matched by taking a panel

sample to your local paint or home improvement

store.

A small can of touch-up paint is supplied with your

custom color panel order. Do not use for edge

coating/sealing for larger projects as there will not be

sufficient supply.

Isolate touch-up locations with low-adhesive/painter’s

tape. Where face fasteners have been used and

patched by cementitious filler, use a cotton swab to

lightly dab touch-up paint.

For scratches, use a cotton swab for small ones or

1” foam brush for longer ones, again using a dabbing

motion rather than brushing in order to minimize the

amount of paint applied.

REMOVAL OF EXTERIOR ACRYLIC LATEX PAINT

Wet Paint Removal - While the paint is still wet, flush

the area with clean water, using mild abrasion with a

clean cloth or soft brush.

Semi-Dry Paint Removal - If paint has set, but not

dried, flush and clean as above, followed by light

scrubbing with alcohol to remove any remaining paint

residue. Rinse with water and a clean cloth.

Dry Paint Removal - Please refer to paint-removal

guide in the next section.

43cLEANING & MAINTENANcE

OTHER PAINT & GRAFFITI REMOVAL

The following products have been tested on

Nichiha panels to aid in the removal of graffiti type

markings.* These citrus-based products can also

be used for basic panel cleaning purposes. The

panels were sprayed with an indoor/outdoor aerosol

spray paint and left to dry overnight, and then the

paint removal products were applied following the

manufacturer’s guidelines.

All products tested achieved good results. However,

the outcome may vary depending on the amount of

paint that needs to be removed. Be sure to follow

all manufacturer’s guidelines and first test in an

inconspicuous area before working on a larger area.

Do NOT use these cleaners with custom color

panels. *Nichiha is not liable for any damage caused

by the use of these cleaners.

CITRISTRIPwww.citristrip.com

Products tested: Citristrip Striping Gel - One Quart container

Citristrip Stripping Aerosol - 18 oz. spray can

GOOF OFF GRAFFITI REMOVERwww.goof-off.com

Products tested: Goof Off Aerosol - 16 oz. spray can

Goof Off - 22 oz. trigger spray bottle

TAGAWAYwww.tagaway.com

Product tested: Tagaway - 32 oz. trigger spray bottle

REPAIRING MINOR DAMAGE

Isolate the blemish with a low adhesive tape such as

painters tape. This will help protect the surrounding

area of the panel and aide in creating a more

polished, clean repair.

Lightly brush/abrade the surface within the taped off

area in order to remove any loose material.

Carefully fill and smooth the resultant prepped area

with cementitious patching material such as MH

Ready Patch. Allow to dry/cure fully.

Gently smooth the patch and then apply touch-up

paint to the affected area. Allow touch-up paint to

dry and remove the tape.

44 cLEANING & MAINTENANcE

PANEL REPLACEMENT

Set the depth of a circular saw blade slightly deeper

than the panel so the saw blade does not cut into the

building wrap or sheathing.

A. Make cuts into the damaged panel and break it

into pieces for easier removal of the damaged panel.

B. Remove damaged panel.

C. Use a 10mm Corrugated Spacer and place it

behind the new panel at bottom, just above exposed

Panel Clips or Starter Track.

D. Cut 3/16” off the back ship-lapped edge at

bottom of panel.*

E. For AWP-1818, cut the right side ship-lapped

edge off the panel.

Prepare to set the new panel in place.

F. Lift panel into place by prying from the bottom

upward. Pre-drill and face fasten the panel with a screw

into the framing members, 2” from panel bottom.

Fill countersunk screw heads with color-matching

cementitious patching material. Touch up with

exterior grade acrylic latex paint

*If panel to be replaced is at the top course or under

a window, cut the top edge of the panel as needed

and leave the bottom shiplap intact. Add Spacer

at top of uncovered wall space and face fasten the

ripped top edge of the replacement panel.

45cLEANING & MAINTENANcE

Trim this edge

A

B C

D E

F

Behind our Architectural Wall Panels is

SOME SERIOUS TECHNOLOGY.

LOW MAINTENANCE

No-fuss products. Little ongoing

cleaning or regular maintenance

needed. You get to bring your

vision to life and ensure it looks

great for a long time.

NO MORTAR, NO MESS

Pre-finished panels that eliminate

the need for messy mortar or

costly masonry-skilled labor.

EASY INSTALLATION

Time-saving Clip Installation

System that reduces construction

time and minimizes mistakes.

ENGINEERED FOR PERFORMANCE

Go beyond our durable panels and

discover a meticulously engineered

moisture management system that

provides a vertical drainage point

for air and moisture to exit.

ANY WEATHER PRODUCT

Products that can be installed year

round in any climate across the

country. No geographical restrictions

means more possibilities.

NICHIHA’S JOINT TAB ATTACHMENT is designed to support panel lateral

stability, helping vertical joints stay

tightly closed. The tab fits in place

easily and is fastened to the

Ultimate Clip with provided screw.

DRAINED AND BACK VENTILATED RAINSCREEN design allows water to escape and air to

circulate, reducing the risk of mold and

water damage inside the building.

THE ULTIMATE STARTER TRACK pulls double-duty. It ensures a fast, level

installation and its patented drainage

channel directs water out and away

from the base of the wall.

THE ULTIMATE CLIP creates a hidden fastening system that all

but eliminates face fastening. Installation

is quick and easy and never requires

specialty subcontractors.

NICHIHA ARCHITECTURAL WALL PANELS are lightweight, easy to handle and

available in a virtually endless color

palette and a diverse offering of

textural finishes.

46 RESOURcES

47RESOURcES

Whether you are an architect, a builder or a contractor, Nichiha wants to ensure that you have all the information

you need to make your project go as smoothly as possible. The way we see it, we are partners. Our website offers a

comprehensive collection of technical information, installation videos, Architectural details, in-depth specifications

and everything you’ll ever need to know about installing Nichiha products.

Never underestimate the power of

REALLY GOOD TOOLS.

SUPPORT

Our in-house technical team is here to assist. If you have questions, comments or

concerns, call or email us.

1.866.424.4421 or [email protected]

INSTALL VIDEOS

Watch our installation instructions come to life — check out our installation videos today!

nichiha.com/commercial/install

DESIGN REVIEW GUIDE

Download our quick reference guide to get an overview on our Architectural Wall Panels.

nichiha.com/resources

ARCHITECTURAL DETAILS

Take a closer look and download our conceptual detail drawings.

nichiha.com/resources/cad

6465 E. JOHNS CROSSING, SUITE 250, JOHNS CREEK, GA 30097 | 866.424.4421 | NICHIHA.COM©2018 Nichiha USA, Inc. All rights reserved. Printed in the USA. | WEB 1.19

THE POWER OF POSSIBILITIESAND PARTNERSHIPS

Your creative vision is unique. That’s why Nichiha wants to offer you the power of cooperation to help your project

move from conception to completion. Our ever-expanding offering of textures and finishes lift buildings to new

and unexpected places and we want to share them with you. We place a high value on our relationships and are

proud to work with our dedicated partners across the country. Join us and discover the power of

possibilities and partnerships with Nichiha.

CERTIFICATION & TESTING

Report EC-58

Florida Approval 12875

WUI8140-2029

CRYSTALLINE SILICA DUST WARNING: Nichiha products may contain some amounts of crystalline silica [a.k.a. sand, silicone

dioxide], which is a naturally occurring mineral. The amount will vary from product to product. Inhalation of crystalline silica into the

lungs and repeated exposure to silica can cause health disorders, such as silicosis, lung cancer, or death depending upon various

factors. To be conservative, Nichiha recommends that whenever cutting, sawing, sanding, sniping, or abrading the product, users

observe appropriate safety protocols. For further information or questions, please consult Nichiha SDS, your employer, or visit

osha.gov/silica and cdc.gov/niosh/topics/silica. The SDS for Nichiha products are available at nichiha.com/resources, at your local

Nichiha dealer, or through Nichiha directly at 1.866.424.4421. FAILURE TO ADHERE TO OUR WARNINGS, SDS, AND OTHER

INSTRUCTION MAY LEAD TO SERIOUS PERSONAL INJURY OR DEATH.

NICHIHA WARRANTIES

• ILLUMINATION SERIES PANELS

15-year limited warranty* on panels, 15-year limited warranty* on finish.

• ARCHITECTURAL WALL PANELS

(Brick, Block, Stone, Wood, Kurastone)

15-year limited warranty* on panels, 15-year limited warranty* on finish.

• METAL TRIM Tamlyn warrants defective-free products for a period of 10 years for the original purchaser. Please visit tamlyn.com for detailed information on terms, conditions and limitations.

* See Nichiha warranties for detailed information on terms, conditions and limitations. Visit nichiha.com for easy downloadable warranties or call toll-free 1.866.424.4421 for a copy.

Nichiha SDS are available on nichiha.com.

Miami-DadeNOA 18-0522.05

TM

L.A.R.R. 26081